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8. Rhododendron subsect. Saluenensia (Hutchinson) Sleumer, Bot. Jahrb. 74: 534. 1949.
怒江杜鹃亚组 nu jiang du juan ya zu
Fang Ruizheng (方瑞征 Fang Rhui-cheng); David C. Chamberlain
Rhododendron ser. Saluenensia Hutchinson in J. B. Stevenson, Sp. Rhodod. 587. 1930 ["Saluenense"].
Small shrubs, erect or creeping, 0.05–1.5 m tall; young shoots scaly, scales sessile or stalked, strap-shaped setae sometimes present. Leaf blade leathery; abaxial surface scales overlapping, often stalked, in 2 or more layers, brown or orange-pink; veins sometimes with strap-shaped setae; adaxial surface scaly or not. Inflorescence terminal, umbellate, 1–3(–5)-flowered; pedicels densely scaly, otherwise glabrous or hispid; calyx large, often tinged with red, 3–9 mm, 5-lobed to base, hairy on the margin; corolla broadly funnelform-campanulate to campanulate, purple, purplish red or deep red, often with darker spots inside, outer surface scaly or not, pubescent; stamens 10; ovary 5-locular, sometimes pubescent; style often longer than stamens, glabrous or pubescent at base. Capsule ovoid, 4–8 mm, surrounded by persistent calyx. Seed wingless.
Four species: China, India, Myanmar; four species (one endemic) in China.
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1 |
Young shoots, petioles, and pedicels densely hispid, with strap-shaped setae. |
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113 Rhododendron saluenense |
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Young shoots, petioles, and pedicels not densely hispid, strap-shaped setae absent. |
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(2) |
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2 (1) |
Leaf blade oblong-elliptic or ovate-elliptic, 1.5–3 × 0.8–1.8 cm, base obtuse, apex obtuse, adaxial surface
densely lepidote; pedicels 0.8–1.5 cm; erect shrubs. |
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(3) |
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Leaf blade ovate, elliptic, or elliptic-lanceolate, 0.6–2 × 0.3–1 cm, base cuneate, apex acute, rarely obtuse, adaxial surface sparsely lepidote or not; pedicels 1.5–3.2 cm; creeping small shrubs. |
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116 Rhododendron keleticum |
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3 (2) |
Leaf blade 0.5–2.5 cm, abaxial surface with scales not flattened, in 3–5 tiers. |
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114 Rhododendron calostrotum |
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Leaf blade (1.2–)1.8–3.8 cm, abaxial surface with scales flattened, in 2 or 3 tiers. |
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115 Rhododendron riparioides |
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Lower Taxa
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